Patents by Inventor Koichi Washisu

Koichi Washisu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170104910
    Abstract: Provided is an imaging device including an imaging element having a first photoelectric conversion unit and a second photoelectric conversion unit, in which a light-receiving efficiency of the second photoelectric conversion unit is lower than a light-receiving efficiency of the first photoelectric conversion unit; an optics that guides a light flux from an object to the imaging element; and a control unit that selects a combination of the first photoelectric conversion unit and the second photoelectric conversion unit used for a motion image capturing and a static image capturing in accordance with a brightness of the object.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 13, 2017
    Inventors: Masafumi Kimura, Koichi Washisu, Yasuo Suda, Akihiko Nagano, Fumihiro Kajimura, Go Naito, Ryo Yamasaki, Makoto Oikawa
  • Publication number: 20160360110
    Abstract: An image processing apparatus detects predetermined information from an image signal and output a detection signal indicating the detected information, stores the detection signals for a plurality of periods, calculates a first prediction value based on a predetermined number of detection signals, from a newer one to older ones excluding a latest detection signal, stored in the storage unit, calculates a coefficient based on a difference between the first prediction value and a value of the latest detection signal, calculates a second prediction value based on the coefficient and the predetermined number of detection signals, from the latest one to older ones, and generates, based on the second prediction value, a control signal for controlling a predetermined constituent member.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 8, 2016
    Inventors: Masafumi Kimura, Koichi Washisu
  • Publication number: 20160323526
    Abstract: A control apparatus includes a signal readout unit 15 which reads out a frame image obtained from an image pickup device while the frame image is divided into a plurality of different regions, an image information calculating unit 16 which calculates image information based on an image signal of each of the plurality of different regions obtained from the signal readout unit, and an adjusting unit 17 which determines a target adjustment value of an image pickup unit including an image pickup optical system and the image pickup device based on the image information during capturing the frame image.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 3, 2016
    Inventors: Koichi Washisu, Masafumi Kimura, Fumihiro Kajimura
  • Patent number: 9294677
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: March 22, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Publication number: 20150189185
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Application
    Filed: March 9, 2015
    Publication date: July 2, 2015
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Patent number: 9007468
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Patent number: 8995681
    Abstract: An audio processing apparatus includes first and second audio pickup units. The second audio pickup unit includes an audio resistor provided to cover a sound receiving portion to suppress external wind introduction while passing an external audio. A first filter attenuates a signal having a frequency lower than a first cutoff frequency of the output signal of a first A/D converter. A second filter attenuates a signal having a frequency higher than a second cutoff frequency of the output signal of a second A/D converter. A third filter is provided between the first audio pickup unit and the first A/D converter to attenuate a signal having a frequency lower than a third cutoff frequency for suppressing the wind noise.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: March 31, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masafumi Kimura, Fumihiro Kajimura, Koichi Washisu
  • Patent number: 8957974
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Patent number: 8792011
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Publication number: 20140176739
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Application
    Filed: March 4, 2014
    Publication date: June 26, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Patent number: 8626500
    Abstract: A sound recording apparatus having a driving unit generates a sound signal from an input sound, detects the level of the sound signal, adjusts the level of the generated sound signal at an amplification factor corresponding to the detected level, and processes the adjusted sound signal to prevent an amplified sound signal from containing a sound signal generated upon driving the driving unit. The sound recording apparatus controls to replace a sound signal in a predetermined period after instructing driving of the driving unit with a signal calculated from a sound signal in the first period after the predetermined period, and to substantially equalize an amplification factor when driving of the driving unit is instructed and that in the first period.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: January 7, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Washisu, Masafumi Kimura, Fumihiro Kajimura
  • Publication number: 20130300881
    Abstract: An image stabilization control apparatus including a mechanism which causes a vibration when the mechanism moves is disclosed. The apparatus comprises a vibration correction unit configured to correct image shake occurring due to vibration applied to the image stabilization control apparatus. A correction value of an angular velocity of the vibration is calculated based on signals based on the angular velocity and an acceleration of the vibration, frequency bands of the signals are narrowed. During the mechanism is moving, the image shake is corrected by driving the vibration correction unit based on the angular velocity of the vibration which is corrected by the corrected value calculated before the mechanism moves.
    Type: Application
    Filed: July 12, 2013
    Publication date: November 14, 2013
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Patent number: 8558897
    Abstract: A camera which can obtain an image without image blur is disclosed. The camera which obtains a synthesized image whose exposure has been corrected by synthesizing a plurality of images obtained through successive image-taking, comprising: a detection unit which detects, with respect to a reference image, amounts of displacement on other images; a coordinate conversion unit which applies coordinate conversion to the other images based on the results of detection of the detection unit; and a synthesis unit which synthesizes the other images subjected to coordinate conversion and the reference image.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Washisu
  • Patent number: 8477201
    Abstract: An image pickup apparatus includes a first detection unit for detecting a rotation shake, a first computation unit for processing a detection signal of the rotation shake into a rotation shake correction target value, a second detection unit for detecting a parallel shake in a plane surface perpendicular to an optical axis, a second computation unit for process a detection signal of the parallel shake into a parallel shake correction target value, a shake correction unit for correcting an image shake in the plane surface of the image pickup apparatus based on the rotation and parallel shake correction target values, an initialization unit for initializing the parallel shake correction target value, and a control unit for moving the shake correction unit based on an image pickup start instruction prior to an image pickup operation while initializing the parallel shake correction target value.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: July 2, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Washisu
  • Patent number: 8471916
    Abstract: An image pickup apparatus includes a first detection unit for detecting a rotation shake, a first computation unit for processing a detection signal of the rotation shake into a rotation shake correction target value, a second detection unit for detecting a parallel shake in a plane surface perpendicular to an optical axis, a second computation unit for process a detection signal of the parallel shake into a parallel shake correction target value, a shake correction unit for correcting an image shake in the plane surface of the image pickup apparatus based on the rotation and parallel shake correction target values, an initialization unit for initializing the parallel shake correction target value, and a control unit for moving the shake correction unit based on an image pickup start instruction prior to an image pickup operation while initializing the parallel shake correction target value.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: June 25, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Washisu
  • Patent number: 8305455
    Abstract: An image stabilization control apparatus includes a vibration correction unit configured to correct an image shake occurring due to vibration, a first vibration detection unit configured to detect and output an angular velocity of the vibration, a second vibration detection unit configured to detect and output an acceleration of the vibration, a first extractor configured to extract a signal in a predetermined frequency band based on an output of the first vibration detection unit, a second extractor configured to extract a signal in a predetermined frequency band based on an output of the second vibration detection unit, an output correction unit configured to correct the output of the first vibration detection unit based on the signals extracted by the first and second extractors, and a driving unit configured to drive the vibration correction unit based on the output of the first vibration detection unit as corrected.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: November 6, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Publication number: 20120207315
    Abstract: An audio processing apparatus includes first and second audio pickup units. The second audio pickup unit includes an audio resistor provided to cover a sound receiving portion to suppress external wind introduction while passing an external audio. A first filter attenuates a signal having a frequency lower than a first cutoff frequency of the output signal of a first A/D converter. A second filter attenuates a signal having a frequency higher than a second cutoff frequency of the output signal of a second A/D converter. A third filter is provided between the first audio pickup unit and the first A/D converter to attenuate a signal having a frequency lower than a third cutoff frequency for suppressing the wind noise.
    Type: Application
    Filed: January 24, 2012
    Publication date: August 16, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masafumi Kimura, Fumihiro Kajimura, Koichi Washisu
  • Patent number: 8218018
    Abstract: An optical apparatus includes a lens frame 12 which holds a focus correction lens 11a and is movable in an optical axis direction, optical axis direction position detectors 19a to 19c which are arranged on one of the lens frame 12 and a supporting portion 13 inside a barrel and detect signals in accordance with a distance to the other one, driving portions 112a to 112c and coils 17a to 17c (driver) which drive the lens frame 12 in the optical axis direction, an optical axis direction movement limiting member of the lens frame, and a lens CPU 1204 (controller) which controls the driver so as to suppress a tilt of the focus correction lens 11a based on a signal detected by the optical axis direction position detectors 19a to 19c whose sensitivities have been calibrated in association with the driving portions and the optical axis direction movement limiting member.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: July 10, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koichi Washisu
  • Publication number: 20120169891
    Abstract: An image stabilization control apparatus includes a vibration correction unit configured to correct an image shake occurring due to vibration, a first vibration detection unit configured to detect and output an angular velocity of the vibration, a second vibration detection unit configured to detect and output an acceleration of the vibration, a first extractor configured to extract a signal in a predetermined frequency band based on an output of the first vibration detection unit, a second extractor configured to extract a signal in a predetermined frequency band based on an output of the second vibration detection unit, an output correction unit configured to correct the output of the first vibration detection unit based on the signals extracted by the first and second extractors, and a driving unit configured to drive the vibration correction unit based on the output of the first vibration detection unit as corrected.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Washisu, Goro Noto, Junichi Saito
  • Publication number: 20120147202
    Abstract: An image pickup apparatus includes a first detection unit for detecting a rotation shake, a first computation unit for processing a detection signal of the rotation shake into a rotation shake correction target value, a second detection unit for detecting a parallel shake in a plane surface perpendicular to an optical axis, a second computation unit for process a detection signal of the parallel shake into a parallel shake correction target value, a shake correction unit for correcting an image shake in the plane surface of the image pickup apparatus based on the rotation and parallel shake correction target values, an initialization unit for initializing the parallel shake correction target value, and a control unit for moving the shake correction unit based on an image pickup start instruction prior to an image pickup operation while initializing the parallel shake correction target value.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 14, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Koichi Washisu